Textarea scaled by transform does not respect new dimensions for scrolling

• Component: Forms
• Status: RESOLVED FIXED

[Dan Peddle]

Example CSS and html: http://jsfiddle.net/dazzled/ydSSf/3/

Overview:

Textareas scaled by transform do not reflect new dimensions for scrolls

Steps to Reproduce: 

Scale textarea with transform. add new lines at bottom of textarea and observe caret position.

Actual Results: 

Caret in downscaled textarea will go outside visible textarea. Caret in upscaled textarea will not go outside of box, but the textarea will start scrolling before reaching the end or beginning of visible textarea when adding text or using cursors.

Expected Results: 

Textarea will behave as 100% version in every regard.

[Dan Peddle]

Created attachment 158562 [details]
Testcase for showing problem at 70%, 100% and 120%.

[Mihai Balan]

To be more specific, the bug manifests when using the arrow keys to scroll through the textarea:
* when scaled at < 100%, the cursor will move past the visible area before scrolling occurs
* when scaled at > 100%, scrolling will occur before reaching the limits of the visible area

[Allan Sandfeld Jensen]

Confirmed. Only caret navigation seems to be affected though.

[Dan Peddle]

Reported and confirmed to Chromium team. 

http://code.google.com/p/chromium/issues/detail?id=146313#c2

[Sukolsak Sakshuwong]

This bug was fixed in r140202 <http://trac.webkit.org/changeset/140202>

[Dan Peddle]

this looks fixed!

[Radar WebKit Bug Importer]

<rdar://problem/45271233>